Version 16.10 AF-6600 AF-5000 Series Install Manual 27
Use of stainless steel mounting hardware is not recommended as it is not always non-magnetic.
If you use a magnet to test whether possible interfering materials are non-magnetic, do not actually
touch the magnet to the material you are testing, as this contact can cause the material you are
testing to become magnetized.
Move a handheld compass throughout the space surrounding your intended location to get a rough
idea of the suitability of the area. Note that this test should be done with major aircraft systems
operating (e.g., strobe lights and radios on) because some systems can cause magnetic
interference. If the compass needle deviates significantly from magnetic North or cycles back and
forth, the location is not ideal for ADAHRS installation.
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ADAHRS Installation Orientation
An ADAHRS module should be mounted within one degree of parallel to all three aircraft axes, with the
pneumatic fittings facing toward the front of the aircraft. The module’s mounting tabs must be on the bottom.
The label must be on the top. Figure 2 shows the correct orientation of the ADAHRS as it would appear if
you were above the aircraft, looking down at it. The module will not operate properly if it is rotated or inverted
in any other orientation.
There are no module-to-module proximity requirements when installing multiple ADAHRS
modules in an aircraft. For example, one ADAHRS may be installed on top of another ADAHRS
module. Other installation location requirements still apply.
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